SkiAllYear
Sep 22 pass · published Sep 26Sign in

Mt Audubon, east side

40.1015, −105.6015 · 3,659 m · SE · 21° · 0 ha on Sep 22

Ground report · SEP 22Satellite · Gone

The ground report is shown first until Oct 2, then the satellite status takes over again.

See what we saw

Drag the handle to compare two passes. The blue line is what the scanner counted as snow.

A · JUL 4 · CLEAR · 3.5 HAB · SEP 22 · CLEAR · 0 PX
0    200 m
N
Every pass this season · pick A and B

Sentinel-2 L2A true color, read at 20 m. One pixel is 0.04 ha. A strip narrower than about 40 m can hold skiable snow and show nothing. By mid-September, north-facing cirques sit in shadow at the late-morning overpass, so one zero isn't proof of anything.

How we got to this status

  1. The Sep 24 pass was cloudy over the site (100%), so a cloudy pass counts as no look, not as zero. This uses the Sep 22 pass.
  2. Sep 22 pass fully covers the site and is clear over it.
  3. No snow pixels in the window (under 3 px counts as zero).
  4. Not flagged as possible new snow.
  5. A second clear zero in a row (after Sep 12), so it reads Gone.
  6. A ground report from Sep 22 is less than 10 days old, so it's shown first until Oct 2.
Scan run 1 · status rules 2026.09-2
NDSI > 0.4 · NIR ≥ 0.6 × green · SCL mask · algorithm 2026.09-2

Getting there

Approach
~2 h · 4 km one way
Route
Mitchell Lake TH, Brainard Lake area
Estimate
Munter rule from straight-line distance and climb. Rough.

Snow on each pass

Hectares of counted snow. Grey stubs are passes with cloud over the site.
0 ha1234JUL 4: 3.52 haJUL 9: 3.04 haJUL 14: 2.56 haJUL 19: cloud or not coveredJUL 24: 1.68 haJUL 26: cloud or not coveredJUL 29: cloud or not coveredAUG 3: 0.76 haAUG 8: 0.72 haAUG 13: cloud or not coveredAUG 15: cloud or not coveredAUG 18: cloud or not coveredAUG 23: 0.2 haAUG 28: 0.12 hashadow?SEP 2: 0.2 haSEP 4: 0.08 haSEP 7: 0 haSEP 12: 0 haSEP 17: cloud or not coveredSEP 22: 0 haSEP 24: cloud or not coveredJUL 4JUL 19JUL 29AUG 13AUG 23SEP 4SEP 17SEP 24FP · SEP 22PA · SEP 18

From the ground

Small but skiable. Photos pending.

The satellite reads 0 px here, so this report is what's shown on the site until Oct 2. The strip is likely narrower than the ~40 m the satellite can see.

Enough snow to ski on Sep 18. Not visible as a lasting patch at 20 m; likely new snow from the Sep 17 storm or a strip < 20 m wide.

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